US Bridges

Township Line Road over Pike Run

Fair

Somerset County, New Jersey · 0.7 MI West of Willow RD · Structure no. 18E0405

Built
1937
88 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
39 ft
1 main span
Daily traffic
1,622
2023 count
Owner
County
County Highway Agency

About this bridge

Township Line Road over Pike Run is a concrete tee beam carrying Township Line Road over Pike Run in Somerset County, New Jersey. It was built in 1937, so it is 88 years old, older than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,622 vehicles a day, roughly 1% of them trucks, projected to reach 1,947 by 2043. The structure is 39 ft (11.9 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTownship Line Road
CrossesPike Run
Location0.7 MI West of Willow RD
RouteCity Street 0
CountySomerset County
StateNew Jersey
Coordinates40.46808, -74.64867
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span35 ft (10.7 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,622 (2023)
Projected traffic1,947 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$226,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Township Line Road over Pike Run built?

It was built in 1937, making it 88 years old in 2025.

What condition is Township Line Road over Pike Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Township Line Road over Pike Run carry?

About 1,622 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Township Line Road over Pike Run?

The structure is 39 ft (11.9 m) long with a longest span of 35 ft (10.7 m) and a deck 34 ft wide.

Who owns Township Line Road over Pike Run?

It is owned by the County Highway Agency.